Transdar

Origin

trans + -dar, after the pattern of gaydar.

Full definition of transdar

Noun

1. (slang) The ability to detect whether or not a person is transgendered/transsexual by observing that person.
• 1996, 24 July, Janet W. Hardy, Re: Independence Day - The movie, I found out about 20 minutes into the workshop that at least six of the men in attendance had been born women. Not one of them had twigged my "transdar."
• 2000, 26 July, Cheryl, Re: everyone flame me, I deserve it., My hearing isn't that great, but my transdar immediately zoned in on him.
• 2013, Asia Friedman, Blind to Sameness: Sexpectations and the Social Construction of Male and Female Bodies, University of Chicago Press (2013), ISBN 9780226023465, page 59:Other respondents offered similar descriptions of transdar as a keen understanding of the most important sex cues.